package com.qk.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qk.common.PageResult;
import com.qk.dto.UserDto;
import com.qk.entity.User;
import com.qk.exception.BusinessException;
import com.qk.mapper.UserMapper;
import com.qk.service.UserService;
import com.qk.utils.JwtUtils;
import com.qk.vo.LoginResultVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public PageResult<User> list(UserDto userDto) {
        //设置分页参数
        PageHelper.startPage(userDto.getPage(), userDto.getPageSize());
        //2．调用mapper接口方法，执行查询
        List<User> userList =userMapper.SelectList(userDto);
        //3．解析并封装分页结果
        Page<User> page = (Page<User>) userList;
        return new PageResult<>(page.getTotal(),page.getResult());
    }

    @Override
    public void add(User user) {
        //补全创建时间、更新时间、状态
        user.setCreateTime(LocalDateTime.now());
        user.setUpdateTime(LocalDateTime.now());
        //密码加密
        String password =user.getUsername() + "123";
        user.setPassword(DigestUtils.md5DigestAsHex(password.getBytes()));
        //调用mapper接口方法，执行添加
        userMapper.add(user);
    }

    @Override
    public void deleteByIds(List<Integer> ids) {
        userMapper.deleteByIds(ids);
    }

    @Override
    public User selectById(Integer id) {
        User user = userMapper.selectById(id);
        return user;
    }

    @Override
    public void update(User user) {
        user.setUpdateTime(LocalDateTime.now());
        userMapper.update(user);
    }

    @Override
    public List<User> selectAll() {
        List<User> userList = userMapper.selectAll();
        return userList;
    }

    @Override
    public List<User> selectByRole(String roleLabel) {
       List<User> userList =  userMapper.selectByRole(roleLabel);
        return userList;
    }

    @Override
    public List<User> selectByDeptId(Integer deptId) {
        List<User> userList = userMapper.selectByDeptId(deptId);
        return userList;
    }

    @Override
    public LoginResultVo selectByUsername(User user) {
        User u = userMapper.selectByUsername(user.getUsername());
        if(u == null){
            log.info("用户不存在");
            throw new BusinessException("用户名或密码错误");
        }
        String s = DigestUtils.md5DigestAsHex(user.getPassword().getBytes());
        if (!s.equals(u.getPassword())){
            log.info("密码错误");
            throw new BusinessException("用户名或密码错误");
        }
        if (u.getStatus()!=1){
            log.info("用户已停用");
            throw new BusinessException("用户已停用");
        }
        LoginResultVo loginResultVo = new LoginResultVo();
        loginResultVo.setId(u.getId());
        loginResultVo.setUsername(u.getUsername());
        loginResultVo.setName(u.getName());
        loginResultVo.setImage(u.getImage());
        loginResultVo.setRoleLabel(u.getRoleLabel());
        Map<String,Object> claims = new HashMap<>();
        claims.put("id",u.getId());
        claims.put("username",u.getUsername());
        String jwt = JwtUtils.generateToken(claims);
        loginResultVo.setToken(jwt);
        return loginResultVo;
    }
}
